Excerpt:
Provocative, issue-oriented advertising isn't new in Washington's transit system. Interest groups often plaster Metro's buses, trains and stations with head-turning messages, occasionally using language and images that some find offensive.
Now comes a photo of Adolf Hitler.
The pro-Israel group American Freedom Defense Initiative (AFDI), angered by anti-Israel ads that recently appeared on some Metrobuses, has countered with a big ad of its own, featuring the Nazi dictator.